Emergency-brake for vehicles.



`PATENIEU ABR. 16, 1907. BAISER.

D. F. @L H. H.. GB, EMERGENCY BMK E FOR VEHGLES.

APPLICATION FILED JUNE 28, 1905.

y irnrrnn sTArns PATENT OFFICE.

DANIEL F. GREASER `AND HARRISON H. GREASER, OF PITTSBURG,

' PENNSYLVANIA.

EMERGENCY-BRAKE Fon VEHICLES.

To wl 'lu/tom, it may concern:

lBe it known that we, DANIEL F. GREASER ,and HARRISON H. GREASER,citizens of the i the main object of' the invention is the pr'o.

' between the tread of vision of an emergency-brake in which a suit ableform of brake-shoe or sled isv interposed the wheel and the roadbed whenthe. momentum of the vehicle is to be stopped in combination with` animproved mechanism for operating said shoe or sled, as will presentlyappear.

In the accompanying drawings, Figure lis a side elevation of anautomobile or motorcar, with a portion thereof in sectibn to show theinvention in the position it assumes-when out ofuse. Fig. 2 isan'enl'arged cross-sectional view taken on` line.2 2 of Fi 1 looking inthe direction of the arrow. ig. 3 is a modified form, as applied torailroad-wheels; and Fig. 4 is a cross-section of the device, sholwingthe shoe or sled in contact withthe rai Referring to the drawings, .thenumeral 1 designates the floor of the body of the automobile, which isprovided with the openings 2 and 3 therethrough. Secured upon the undersurface of the -iioor and depending therefrom are journakbrackets 4 and5, in which. is journaled a shaft 6, carrying the two chains 7 and 8,which are adapted to. be wound thereonto operate the shoes or sleds 9and 10, pivotally secured by means of the right-angled arm 11 to thesleeves 12, a rod 13 bein i connected to one end of each sled and to tie chains 7 and 8, whereby the shoes or sleds are moved so as todescribe substantially an arc of a circle.

Pivotally connected to a plate 14 is anarm 15, 'whose reduced portion 16fits' slidably within the sleeve `12 and is providedwith a pin 17, whichpasses through the o ening or slot 13 in said sleeve, so as to limit t edownward movement of the shoe or sled, a coiled spring 1.) beinginterposed upon the reduced priirtion 16, so as to normally hold vtheshoe downward Specification of Letters Patent. Application filed June28, 1905. Serial No. 267,446. y

Patented April 16, 1907.

In order to quicken the downward movement of the shoe or sled, so thatthey will engage the periphery of the wheels 2() at their point ofcontact with the ground, we provide the spring 21, which engages a lever22, carried upon the shaft 23, the other end of the spring beingconnected to a stationary bar 24, the spring exerting a tensiondownward. so as to reduce the proper eii'ect.

In or er to operate the devicedthat is, rotate the shaft 6 in eitherdirection-we mount thereon a pinion 25, which is adapted to mesh with apinion 26, carried upon the short shaft 27 and' journaled between a pairof brackets 28, the said short shaft also having mounted thereon aratchet-wheel 29, which is adapted to be engaged bya pawlV or detent 30.In order to operate this pawl or de-4 tent so as to release .the ratchetand allow the shoes to be thrown into operation, we provide a link 31, a.bell-crank Ilever 32, pivoted in the floor of the automobile in theopening 3, and the connecting-rod 33, connected to the bell-crank lever34, pivoted so as to opcrate .in the opening 2 in the floor oftheautomobile. lTo the other member of -this bellcrank lever 34 we connecta spring-actuated rod 35, which is operably connected to thesteering-post 36 of the automobile, so as to be operated upon by ahand-"levell 37, pivoted near the top of the steer'ingpost and readilyaccessible by the operator of the automobile, aspring 38 being somounted as toexert a tension as to hold the pawl or detent'in -engagement with the ratchet-wheel.

In order to operate the shaft so as to wind the shoes or sleds in'inoperable positionafter being in use, we provide a handle or lever-39,whichis provided with an oll'set 'end 40, carr incas ring-actuated awlor detent 4],by. 5 y n F h p y9 means o which the lever is rocked oroscillated so as to rotate the ratchet, and colise-l qently the shaft 6,so `as to wind the chains x 7 and 8 thereupon and raise the slices orsleds. As shown in Figs. 3 and 4, this form of device is applied for useupon railway-cars, and in this instance We form the slices, instead oflat segmental pieces in the other views, with a shouldered tread 42 forengage-- ment with the rail 43 andwith a depression 44 inv itsprojecting llange 45, which is adapted to engage the periphery of theearwhe'el 46 and form a receptacle for the Ilange 47 thereof, thespring-actuated sliding rod 12 being pivotally secured at 48 to the proico i IIO lieeting llange 49, whieh is adapted to he exterior of thevnr-tthvel.

Front thv foregoing desvtiption it will he seen thnt` we provide nnivnns whivh will prevent vehivles front sliding, whieh is gvnernlljtYthe. vase when the vehivlv hns helen driven :1t :t high speed.

l/Yhaty we elniln :ts new, and desire to secure. hy Letters Patent, is-

l. 'lhe eonthinution with n vehicle, oll an eniergenet-hrnlie therefor,eonsisting of lnenns ndnptvd to he wedged letwven the wheels of thevehivle :intl the ground, in `:tus for holding the sinne out ol'vngngvtnent with the wheels and ground, invztus opernhlv l'roin thesteering nivt'hnnisni ol' thv vehivlv l'or relensing the wedgingnivztns, :nid :iutounttiv nivnns svt in operation hy' snid rvlvnsingnieuns wherehy thv wedging ntvnns :ire plzieed in eontnvt with thvwheels und thv ground.

2. 'l`he eonihimttion with it veltivlv, ol' :tu etnvrgvnvy-hrttltethvrel'or, eonsisting of inetnis :tdnpted to hv wedged hetween thewheels ol' thv vehiele und thv ground, invuns for holding the suine otttoll engagement with the wheels :tud ground, tnvznis opernhlv l'roni thesteering tnvehnnisni ol' the vehivle l'or rvleusing thv wedgiug inenns,znttounttie nivuus svt in opvrntion h -snid relvztsiug nieatus where-h vthv wvdging nivnns :n'e phtrvd in vontnet with thv wheels und theground, und tnettns l'orreturning thv wedging nivnns to inoperativeposition.

Il. 'l`hv vonihiuution with n vehicle, ol' :in emergentv-hrztlietherefor, vonsisting ol' u, puir ol' shoes :ttlnptvd to hv wedgedhvtwven thv wheels und thv ground, ntenns for holding salitl shoes outol' engngetnvnt with thv wheels und ground. tnvuns opetzihle i'roni ythesteering ntevhnnistn oll thv vvhivlv forrvlensing sind shoes, :ind:nttounttie nienns svt in operntion h v sziid releasing tnvttns wherehj'thv shoes :1re pluvvd hetween thv wheels und thv grottnd. v

4. 'lhv eotnhinzttion with u vehielv, oll :in einvrgvnot-hrztketherefor, vonsisting ol' u pttir oll shoes ndztptvti to hv wedgvdhvtween the wheels und the ground, menus for holding sztid shoes out ofvngugeinvnt with thv wheels :tud ground, nivnns operzthle l'roin thvsteering invelutnisni olI thv vvhivlv for relvnsing sttid shoes, menusfor :uttounttivztlly wvdging the shoes helwvvvn the wheels :1nd theground u-t'tvr satid shoes nre rvleztsvd, :ind tnvnus for returning thvshoes to inoperative position.

5. 'lhe eonihinzition with :i vehit'le, of :tn enivrgeney-hrziltetherefor, vonsisting of :L pitir olI shoes :tdztptvtl to hv wedgedhetween the wheels :tud thv ground, nivuns l'or holding thv shoesoutol'vngatgetnent with t-hegrouud, spring-ziet tnttvd nienns for exertingn. tension to throw thv shoes in opernhlv position, und nteztnsoperaihlv front thv steering tuvelntnisni ol' the vehivlv l'or releasingthe holding menus and allowingr the spring-actuated nieztns to )plateethe shoes in eontttet with the wheels ztnd ground.

6. 'l`he e'oinhinzttion with at vehicle, of un etnergvney-brztketherefor, Consisting of n pnir of shoes adapted to he wedged between thewheels and the ground, ineztns for holding the shoes out of engagement;with the ground, spring-nettutted means for exerting :t tension to throwthe shoes in operable position, nieitns operzthle front the steerlngnievhnnisnt of tlfe vehicle for releasing the holding inenns undallowing the spring- :iet unted nieztns to platee the shoes in Contactwith the wheels und ground, und tnettns for rvturniin.r thv shoes toinoperative position.

T. The rotnhiinttion with. :t vehiele, of an vinergetiev-hinltetherefor, Consisting of o. shaft' pivoted helow the lloor thereof,apn'ir of ztrnts vztrrivd hy the slutft, :l uevtvd to enen ol` sind:nnts and projecting downwardly, :t shoe pivotnll)v eonneeted'to eztt'hsleeve. invnns tonnevting both shoes so than they operativ in unison,tnenns for holding thv shoes in inoperative position, means forreleasing smid shoes, und means for autotnntivztllv plnving the shoes inengagement with the wheels und ground after they have heen tvlensed.

N. 'l`ie votnhinzttion with. :t vehicle, of im entergenev-hruketherefor, eonsisting of a situll't pivoted helow the floor thereof, a,pair of :n'nts eznried h v thv shitft, zt pair of shoes tttrried h vsind :ntns adapted to Contact the wheels und tlte ground w `en vinoperable position, tnenns lor vonneeting the shoes t-ogetlter, tnennsfor holding the shoes in inoperative position, niettns for releasingsaid shoes operiihle front the steering mechanism ot' tle veielv, midniettns for nutonmtically phtvug tle shoes in engagement with the wuvels:tud the ground :ifter the shoes have hevnrvleztsed. l

t), 'lhv vonihintttion with :t vehicle, of an euivrgeney-hrttkvtherefor, eonsisting of a shatft pivotvd helow the lloor thereof, ttpair of shoes ezn'ried therehy ttnd adapted to swing in :in :tre of iteirvle to engage the wl`evls :tud the ground simultaneously, nteztns forholding thv shoes in inoperative position, nieuns l'or rvlensing theshoes opernhle l'roni tlv steering tneehztnisin of the vehivle, :tudtneuns for nutonnttieztll)v placing the shoes in eugugvnient with/thewheels und ground zil'ter the shoes :tre released.

lt). 'lhe votnhinzttion with :t vehiele, of an emergentv-hrztltetherefor, eonsisting ofitt. shitl't pivotvd to thv Iloor thereof, :tpair of shoes -urrvd hy sztid shaft ztnd adapted to swing in :in ure ol"at virelv to engage the wlfevls :nid thv ground when in opertthleposition, nienns l'or holding the shoes in inoperutivv position, uieztnsfor releasing the shoes operzthle from the steering tneehtmisin olI thevehiele, invztns for nutonnttieztlly plite 13o IIO . gageinent with .ingtheshoes in engagement with the wheels shoes in engagement with thewheels and the emergency-brake therefor, consisting of V emergency braketherefor,

'means adapted to be wedged and ground after theshoes are released, andmeans for returning the shoes to inoperative position.v

. 11.l The combination with a vehicle, oll an` emergency-brake therefor,consisting of a shaft pivoted below the floor thereof, a pair of armscarried by the shaft, a sleeve connected to each of said arms andprojecting downwardly, a shoe pivotally 'connected to each sleeve, meansconnecting `said shoes together, means for holding the shoes ininoperative position, means for. releasing said slices, means forautomatically placing the ground after the shoes are released, and meansfor returning theshoes to inoperative position.

l2. The combination with a vehicle, of an a shaft pivoted below thefloor thereof, a pair of arms carried by the shaft, a pair of shoescarried by said arms ada ted to contact the vwheels and the ground W enin operable position, means for connecting the shoes to- 1 gether, meansfor holding the shoes in inoperative osition, means for releasing saidshoes loperable from the steering mechanism of the vehicle, means forautomatically placing the sho es in engagement ywith the wheels and theground after the shoes are released, and means for returning the shoesto inoperative position.

13.. The combination with a vehicle, of an consisting of' means adaptedto be wedged between thel wheels and the.v ground, means for holdinglthe same out of engagement witlithe wheels and ground, 'means operablefrom the steeringmcchanism of the vehicle-for releasing thewedgingmeans, and means set in operation after the wedging means isreleased, whereby the wcdging means is placed in enthewheels and theground. `14. The combination with a vehicle, `of an emrgencybraketherefor, consisting of between the wheels and theground, means forholding the same outA of engagement with the Wheels vdownwardly so as toplace the shaft pivoted below the iloor and ground, means operable fromthe steering mechanism of the lvehicle fori releasing the wcdging means,means set in operation l after the wedging means is released, whereby lthe wedging means is placed in engagement with the wheels and ground,and means ior returning the wedging means to inoperative position.

15. The combination with a vehicle, of an emergencybrake therefor,consisting of means'adapted lto be wedged between theV wheels andground, means for holding the saine out of engagement with the Wheelsand ground, means operable from the steering mechanism of the vehiclefor releasingwtlie wedging means, means set in operation after thewedging means is released, whereby the Wedging means is placed inengagement with the wheels and ground, and manually-oper ated means forreturning the 4wed'ging .means to inoperative position j 16.'llhe'combinationfwith a vehicle of an. emergency-brake therefor,consisting oi a shaft pivot'ed below the ioor thereof, `a pair of armscarried thereby and provided with reduced portions, sleevesfor the recetion oi said arms projecting downwardly, as ioe car-` ried by eachsleeve, means forconnecting the shoes together, a spring exerting atension shoes simultaneoi'isly'in engagement with the wheels and theground, and means whereby the shoes are raised simultaneously.

17. The combination witliia vehicle, of an emergency brake therefor,consisting oi a of arms carried by said shaft, sleeves iur the receptionof said arms projecting downv iwardly, a slice piyotally connected toeach sleeve, means for 'connecting both of said shoes, spring-actuatedmeansfor exerting tension downwardly so as to place the shoessimultaneously in engagement with. the ,wheels and the ground; and meansopera-ble thereof, a pair from the vehicle `for releasing the exertingmeansJv-hereby the shoes are placed in con Atact with the 'wheels andground.

In testimony whereof we ailix our signae tures in presence of twowitnesses.

Danis-L Gamesa. llARllSON H. GREASER.

lvlv'itncsses:

W'M. K. Ginn', D. E. IWILsoN.

